Controller; Overview - LG AR-DR12-05A Installation And Operation Manual

CONTROLLER

Overview

CAREL® Controller Overview
All units are equipped with a fully programmed, microprocessor-based controller that is
responsible for unit operation; monitoring inputs and regulating outputs to maintain unit
operation. The controller includes:
• Internal schedule (may be disabled).
• Unit-specific controls sequence.
• Component safeties and alarms.
• Ethernet RJ-45 network port.
• MODBUS protocol to connect to AC
®
The controller also provides user feedback through an optional handheld keypad/dis-
play (hardwired), or can be connected to a building management system interface.
Expansion Boards
Some unit configurations require control expansion boards CAREL c.pCO2 or CAREL
EVD evolution. Expansion boards communicate with the controller through MODBUS®
protocol.
Electrical Specifications
The DOAS controller receives 24 VAC power from a transformer on the main control
panel, and is energized when the main disconnect is on. The size of the CAREL cpCO
board varies with unit configuration.
Connecting to the Web UI
To use the Web UI and to access the controller from a computer, tablet, or smart
phone connected to the local area network resides, enter the controller's IP address
into the device's web browser.
1. Using a standard CAT5 Ethernet cable, connect the computer to the controller at
the Ethernet Port 1 connection as shown in the figure.
2. Open a web browser (Internet Explorer® or Chrome® browsers are supported).
(Internet Explorer is a registered trademark of Microsoft Corporation.
Chrome is a registered trademark of Google LLC.)
3. Type in IP address 192.168.1.101 (factory-configured).
Figure 50: Expansion Board Example.
Controller
(Carel c.pCO Board)
102
Smart and ACP (Modbus is a registered
trademark of Schneider Electric, licensed
to the Modbus Organization, Inc.).
• Points, scheduling, and system settings
can be manipulated through a computer
running Web UI software.
Expansion Board
(Carel c.pCOe Board)
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.
Figure 47: CAREL
CAREL is a registered trademark of CAREL INDUS-
TRIES in Italy and/or other countries.
Figure 48: Web User Interface.
Figure 49: Optional Handheld Keypad / Display.
Figure 51: Connecting to the Web UI.
Controller.
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